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Finding the Fourth Proportional to 132,928.51, 183,436.28 and 73,312.51

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Solution

The fourth proportional to 132,928.51, 183,436.28 and 73,312.51 is: 101,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,928.51 : 183,436.28 = 73,312.51 : x
  2. Step 2: Convert to fraction form
    132,928.51/183,436.28 = 73,312.51/x
  3. Step 3: Cross multiply
    132,928.51x = 183,436.28 × 73,312.51
  4. Step 4: Simplify right side
    132,928.51x = 13,448,173,745.30
  5. Step 5: Solve for x
    x = 13,448,173,745.30/132,928.51
  6. Step 6: Final answer
    x = 101,168.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.